Stereolithography (SLA) – Amahitamo meza yo gucapa neza mu buryo bwa 3D
Stereolithography (SLA cyangwa SL) ni ikoranabuhanga ryo gucapa rya 3D rifite ubuhanga bwo hejuru rikoresha resin ishobora gufotora nk'ibikoresho fatizo. Iri koranabuhanga rikoresha imiterere yo gukosora vuba ya resin ishobora gufotora munsi y'imirasire yihariye ya UV laser, bigatuma habaho gukora neza inyubako zikomeye za 3D binyuze mu gukora urwego ku rundi.
Mu gihe cyo gukora, resine ishobora gupima urumuri rw'amazi ihita ihinduka polymerization no gukomera iyo ihuye n'urumuri rwa UV (uburebure bw'urumuri ni hafi 250-400nm). Imashini ya SLA yibanda neza kuri lazeri ya UV ku buso bwa resine ishobora gupima urumuri, igenda ihindura resine kuva ku murongo umwe kugeza ku wundi, hanyuma kuva ku murongo umwe kugeza ku wundi, bigatuma buri cyiciro gifatwa neza. Urwego ku rundi, hakorwa icyitegererezo cya 3D gikomeye kandi kirambuye.
Stereolithography itanga ibyiza nko gukoresha neza cyane mu gutunganya ibintu, ubuso bworoshye, no gukora ibintu mu buryo bworoshye. Ikoreshwa cyane mu gukora ibishushanyo mbonera by'inganda, gushushanya ibikoresho by'ubuvuzi, gushushanya imitako, gukora ibishingwe, no gukora ibishushanyo mbonera bigezweho. Gukora kwayo vuba kandi neza bigabanya cyane imikorere y'ibicuruzwa, bikazana uburyo bworoshye bwo gukora ibintu no guhanga udushya mu nganda.
SLA (Stereolithography) si ikoranabuhanga ry’ingenzi mu gucapa mu buryo bwa 3D gusa, ahubwo ni n'igisubizo cyiza cyane cyo kugera ku isuzuma ry’imiterere myiza no gukora ibikoresho bito byihariye, bifasha amasosiyete kugera ku bipimo byo hejuru mu gukora ibikoresho bigezweho.
Resins zikoresha ikoranabuhanga rya radical photosensitive ku buntu:
Ibyiza: Ihendutse, irakira vuba, irakomera neza, ifite ubukana buke
Ingaruka mbi: Kubuza umwuka wa ogisijeni cyane, kugabanuka cyane, guhindagurika kw'ibicuruzwa byacapwe, ubuziranenge buke, no gukenera gusubirwamo kabiri.
Resins zo mu bwoko bwa Cationic Photosensitive Resins:
Ibyiza: Kugabanuka guke k'ingano iyo ivuwe, umuvuduko mwinshi w'ingaruka, nta mpamvu yo kongera guhindurwa nyuma yo gushingwa, nta ngaruka ku guhagarika umwuka wa ogisijeni, kudahinduka neza mu ngero, imiterere myiza ya mekanike, no gukora neza cyane.
Ingaruka mbi: Igipimo cyo gukora buhoro, ubushyuhe bwinshi, ether za vinyl zifite igipimo cyo gukora cyane kandi zigakira buhoro; epoksiya ziracika intege
Sisitemu zivanze:
Sisitemu za acrylate-epoxy hybrid zihuza amahame abiri yavuzwe haruguru yo kuvura, hamwe n'ibitangizi bya cationic na free radical bikorana.
Resine zo gucapa za 3D zishyirwa mu byiciro bibiri: resine zoroshye gufotora, resine zoroshye gufotora za cationic, na sisitemu zivanze. Ever Ray, uruganda rufite uburambe bw'imyaka 20 rwihariye mu gukora no guteza imbere resine zishobora kuvurwa, rufite ubushobozi bwo gukora toni 20.000 buri mwaka, umurongo wuzuye w'ibicuruzwa, n'ubushobozi bwo guhindura ibicuruzwa. Resine zo gucapa za 3D zirimo Polyurethane 7224-1, 7200, 7296-1, na 7253A-5.
